As I already own an Xbox One, which I rarely use, it's a bit of an uphill battle for Microsoft to get me to buy a Scorpio. If I was using the Xbox One frequently, I'd happily upgrade to a Scorpio at some point (I bought a PS4 Pro), but right now I just don't see the games to justify it. Scorpio will, no doubt, have the best looking/performing console multiplatforms, but I don't imagine the gap will frequently be big enough to justify the console, especially when every one of the people in my gaming circle owns a PS4.
Microsoft need to recapture the kinds of exclusive/console-exclusive games lineup that they managed at the early part of the last generation. They are so, so far away from that at this point, though, it probably would only take two truly great games to turn it around for me. The thing is, nothing Xbox has done this generation (or, frankly, quite a few years before it) has indicated them being close to greatness with their exclusives.